Mortise lock



S. SEGAL.

WIORTISE LOCK.

APPLlCATION FILED FEBu l2, 1920.

194235906@ Patented Aug. 8, 1922., 2 22 o" 3, l v

llllllfrllllz/zllllll gllellfII/#Quv f SAMUEL SEGAL, 0F NEW YORK, N. Y., ASSIG-NOR TO SEGAL METAL PRODUCTS `COME-z PANY, NC., Oie vNEW YORK, N.I Y., A. CORPORATION OE DELAWARE.

MORTISE LOCK.

Application ined February 12, 1920.

tuated vertically and interlock with a keeper fastened to the door frame.

rlhe principal object of my invention is the production of a lock preferably for a swinging` door and of the general type indicated above wherein the lockingl mechanism or casing for holding theflocking mechanism is mortised in the door'.

A further object of the invention is the production of a novel form of keeper having` yielding` or compressible ears normally extending in the space between' the door and door frame and which shall be adapted to be compressed or forced inwardly by the door upon the closing' thereof and to automatically extend outwardly into-locking' position when the door is completely closed.

lileretotore,y particularly in' the' case of swinging' doors having' a lock with a vertically operating; bolt, it has usually been necessary to fasten the lock casing to the inner face of 'the door with the end thereof extending' beyond the edge of the door soas to permit the locking' bolt within the casing to interlock with the keeper on the door frame. The mort-ising' of the lock casing in locks of this character has therefore in cases of this character been impossible as, obviously, the casing would strike against the door frame upon the closing of the door and would prevent its closing'. By means of my Vinvention this diiiiculty has been obviated and I have produced, from a standpoint of' strength and appearance, a lock of the above general type which is superior to any locks of which I have knowledge;

In the accompanying drawings showing` a practical embodiment of the invention:

Fig. l is a front elevation (partly in section) of my improved lock shown mounted in a door.

Fig: 2 is a horizontal section on thej line efe or Fig. i.

Speccation of Letters Patent.

Patented Aug. 8, i922.

serial No. 358,221.

F 1g. '3 is a vertical cross-section on the line 3-3 of Fig. l.

Fig'. 4 is a horizontal section on'the line l-l of Fig. l.

Fig'. 5 isa vertical cross-section on the' l`inei55 of Fig. l. Fig. 6 is a view similar to Fig. 2 but showing a portion only of thev parts" shown 'in that figure and in position when' the door is partially closed.

Referring more particularly to the several iigures of the drawing: f l indicates a door preferably of the swinging'type and 9 the door frame. 3 indicates the outer wall, 4t a removable cover plate constitutingl the inner wall and 5 an end wall of aA casing which contains the locking mechanism, said end wall being also provided with an extension forming a striker plate 6. The casing is provided with lugs 7' on the sides thereof and posts 8 and 9 fastened to the outer wall 3 on which lugs and posts the cover plate 1l is adapted to rest and be Adetachablysecured to the posts by suitable screws. wall 5 of the casing which preferably have imperforate.` inclined sides as illustrated, said sides forming a portion of the front and rear walls of the casing` proper and which are adapted to receive the ears of a'- keeper as will presently be described. The casing' is mortised in the door l intermediate the front and rear faces of the door and with the end wall 5 flush with the side of the door and it is held in thisy position byA suitable screws ll passing' through the end wall and into' the door. When in proper mortised position, the front and rear walls and other parts of the casing, with the eX- ception of the end wall which is exposed to view. are entirely surrounded and enclosed by the material of the door and are lhidden from View.

The locking' bolt proper comprises a plate l2 having' vertical locking lingers or hooks i3 preferably integral therewith. said plate being' also provided with opposed lugs l-l lll spaced apart and having' inclined opposed surfaces as illustrated. Said locking bolt is adapted to travel or be operated vertically within the casing' on tracks 15, 16 and 17 which are preferably integra-l with the walls of the casing and which act as guides for the locking bolt.

l() indicates slots in the end lug-.14', bears. against the top of the post which acts as a stop tolimit the downward movement of the plate 12. 23 indicates a leaf spring one end of which is fastened to the upper :end of the pawl 19y andthe other end of which engages a bottom or lug 24 on theplate 12. 'The action of said spring tends to retain the finger in normal posivtion. intermediate the lugs 14 14 and the thi'ough and being screwed in the cover plate 4 of the casing. To lock the tumblerbarrel.

lower end of the pawl in engagement with the post 8. v y

25 indicates a knob operable from the 1nside ofthe door having a shank 25 passing` therethrough, to the end of which shank,

within the casing, is attached the annular plate26 having opposed operating arms 27 to which studs 28 are fastened. 29 is a spring engaging the studs 28 and the ends of said spring are held in clips 30. Said -spring -act's to normallyretain the arms 27 in vertical disposition or the position shown in Fig. 1.'

31 indicates a conventional tumbler-barrel of a cylinder lock which is embedded in the door and is-accessible from the outside thereof. Saidtumbler-barrel Vis provided with a screw-threaded inner end 32 having a slot said screw-threaded end extending barrel in order to prevent unscrewing of the `same from without the door., l have provided an elongated pin 34 extending through the end wall 5 of the casing and through the door, the end of which is screvv-threaded shown (Fig. 2). Said pinfis screwed into the door from the endwall 5 to force the end thereof into engagement with the slot 33 thereby preventing rotation of the tumbler- (not shown) which maybe turned or op- I y yerated .from lwithout the door by a key inserted in the tumbler-barrel, carries on the i end thereof within the casing an operating arm 35.

Mounted in the casing` beneath the lockingI bolt -is a spring latch the body of which is indicated at 36. vSaid. body is provided with ahead 37 having an inclined side as `shown in Fig. 4, which head normally extends through a suitable opening or slot 38 in the end wall 5. Secured to the head 37 are the inwardly and longitudinally extending rods 39 provided at their inner ends with transverse flanges 4() which are adapted to vThe spindle of the tumbler-barrel.

engage posts 41 mounted in the casing to limit the forward or projected movement of the head 37 through the opening or slot 38. An inward or vretracted movement of the head 37 is limited by the engagement of the body. 36 with the post' 9. 42 indicates springs encircling the rods 39, the forward ends of which engage the head 37 andthe rear ends of which engage a transverse plate 43 through which the rodsl 39 extend, said transverse plate engaging .they side of the post 9 as well las suitable shoulders with ywhich the posts 41 are provided and as illustrated in Fig. `1. As is obvious, the action of said spring tends to project the head 37 of the spring latch through the slot 38 and tol retain the head in projected or forward position.

44 indicates a latch knob mounted on the inside of the door and having a shank 45 ex` tending therethroughv and through the wall 3 of the casing, the inner screw-threaded end of which engages the rotatable hub 46 which extends transversely through the casing. A handle or knob 47 is mounted on the outside of the door and has a shank 48 connecting therewith and extending through the door' and through the cover plate l4. Said shank 'is provided with a screw-threaded end which also engages the rotatable hub 46. F astened to the hub 46 is a platef49 having hooked ends or fingers 50 adapted to vengage the transverse lianges 40 whereby the latch bolt may be drawn manually into retracted position against the action of the springs; 42

vby turning either the latch knob 44 or the knob 447 in an: obvious lnianner.

51 indicates the front wall or face ofv a keeper Vcasing and 52 the rear removable cover or wall thereof which Vcarries housings 53 preferably integral therewith. Said casing is mortised inthe door framewith the front wall or face thereof flush with the side of the frame and is held in position by suitable screws 54. The said front wall yor face 51 vis provided with slots 55 in alignment with the slots 10 in the end wall 5 of the lock casing, with a slot 56 in alignment with the slot 38 in said end wall and with a striker vplate 57 preferably integral with the front wall 51. y 58 indicates an opening in the door frame registering with the slot 56.

My improved keeper ears comprise perforated members 59 having cam sides or inwardlytapering sides terminating in rounded ends 59 as illustrated and normally `extending in operative position through the ySlots 55 in the frontwall or face 51 vof the keeper casing. vSaid members arel provided at either side thereof within the keeper casing with vertical flanges'y 60 'having youter curved surfaces as shown, which flanges span .the .slots 55 and prevent the membersI v59 from being withdrawn outwardly therethrough. Said vertical flanges 60 normally insane() lie between the side walls 'of the keeper casing and lugs or projections 61 which are preferably integral'with the front wall 51 of the keeper. (See F ig. 5.) 62 indicates rods which are pivoted as at 63 to the rear portion of the members 59 within the casing and which extend withinthe housings 53. Encircling the inner ends of the housings 53 and bearing against the rear wall 52 of the keeper casingand against the rear portions of the members 59 are the springs Ui whose action, as is obvious,` tends to retain the members in projected position, through the slots 55. Said members may beforced or are compressible inwardly into operative po sition against the action of the springs 6d, their inward or retracted movement being limited by theinner ends of the housings 53 which; act as stops. l/Vhen the ears are in retracted position the edges of the extreme rounded outer ends 59 are substantially flush with the outer surface of the front wall 51 of the casing. Also, as is manif-est, due to the pivoting of the rods 62 to the members 59, it is immaterial, in order to force or compress the members inwardly within the keeper casing, whether .force or pressure is applied to any point ofthe tapering sides of the members or to the eX treme rounded ends 59 thereof. lhenpressure is applied to one of the tapering' sides, for insta-nce, the vertical flanges 60 adjacent that side will rock around. the adjacent lugs or projections 61 which act asvfulcrums and the outer curved surfaces of these vertical flanges 60 will roll on the side wall of the keeper casing, (see` Fig. 6) after which the members are pressed inwardly bodily. y

The locking bolt may be operated manually to move'the'vertical lingers or hooks 13 thereof into` locking` engagement with the perforated ears 59 ofthe keeper.r as shown in Fig. 1. or to withdraw the same from locking` engagement with said ears by turning the knob Q5 on the inside o'j the door orby means of a key inserted in the tumbler-barrel from without the door.

lhen the locking bolt is in locked posin tion or that position shown in Fig. 1, a turning of the knob 25 causes the lower operating arm 27 to swing` upwardly past the inclined face of the lower lug 14. lt then engages and presses against the finger 20,

thereby` forcing the pawl 19 outwardhv ony pivot 13 and against the action ofthe spring' 23 and releasing` the shoulder Q1 from its engagement withthe 'post 3. further movement of the loweroperatiug armr 2T by means of the knob 25 forces the same to engage the upper lug 1.4L and manually raises the locking bolt into unlocked position where it is so held byl automatic engagement of the shoulder withv the. top of post S due to the actionof spring 23. @bviously7 the same result may be accomplished bolt downwardly by pressure against 4gage fthe post 3 -f within y the keepery from withoutthe door by the insertion of key in the tiunbler-barrel 31, the turning et which key'will actuate the operating arm 35 and cause the arm to perform the same operation just described as the operating arm 27. I

The locking bolt may also be thrown :manually from unlocked position into locked position by means of the upper operating arm 2'2' operated by the knob or by means of the operating arm operated by a key inserted' in the tumbler-barrel 3l. n this case the turning of the knob or key forces the upper operating arm Q7 or operating' arm 35, as the case may be., to engage and press inwardly the finger Q0 thereby releasing the shoulder 22 from engagement with the post 8 and forcing the the lug 14 and allowing1 the shoulder 21 to endue to the action of spring" 23.

As previously described, the perforated ears of the keeper are normally inprojected or operative position due to the action of springs Git. Assuming the loc-king bolt is in retracted or unlockedposition and the door is open, a closing of the same if the door is a swinging' door, causes the perforated ears to strike against the striker plate 6 which effects a compressing of the perforated vears within the keeper casing and into inoperative position against Athe action of the springs 64. `When the door is completely closed the perforated ears ot' the 'keeper are automatically projected by the action of the springs 64C through the slots 10 and into the lock casing, after which the locking bolt may be thrown into locked position in the manner previously'described te cause the .fingers or hooks 13 to extend through the perforations ofthe ears of the keeper and interlock therewith. Upon the closing` of the door the inclined. side of the head 37 ofthe latch bolt also'engages the striker' plate 57 of the front wall 51 of the keeper casing, thereby forcing the, (latch bolt inwardly against the action` of the springs 42.. `When the door is completely closed the head 3?'- lof the latch' boit is automatically projected by the springs 4t2 throughthe slot 56' in theA front wall 51. and into the opening l 58 in the door casing. Then the door is closed and thc'locking bolt isin locked-position, the door may not be opened until the locking bolthas been manually withdrawnV fromV locked position in. the manner previously described and until the latch bolt has beeny retracted by means ofvthe latch knob or knob Z157, A pressure against the door from the inside thereof or. a pulling from the outside 'thereof will thenecompress the keeper ears vcasing andv permit the.

door to be opened.

lWhat l claim as my invention is 1 i. In a lock, a door adapted to swingl around a vertical axis, a keeper fastened to vfastened to the door frame, a movable ear the doorframe, an ear on said keeper extending laterally towards the door and into the'space between the door and door frame,l

a casing provided with an end wall flush with the vedge of the door and with front and rear walls connected to said end wall,

said casing being mortised in the door intermediate thefront and rear faces thereof whereby the material of the door entirely surrounds and encloses said front and rear :walls of said casing and whereby said end wall only is exposed to viewand a vertin cally operatingN locking bolt mounted in said casing adapted-to interlock with the ear o .said keeper.

2. In ay lock, a door adapted to swing around a vertical axis, a keeper fastened to the door frame, a casing mounted on said door and provided with an end .wall flush with the edge of the door and having a sloty therein adapted to receive said keeper and being also provided with kfront and rear walls connected to said end wall, said front `and rear walls being imperforate kadjacent said end wall, and a vertically operating *locking bolt mounted in said casingvand adapted to interlock with said keeper.

3. In lock, a door adapted to swing;

o around a vertical axis, a keeper'fastened to Athe door frame, an ear on said keeper extendinginto the space between'the door and door frame, a casing` provided with front and rearv walls and an end wall connected to said front and rear walls and having, a slotl therein adapted to receive said keeper ear, said casing: being mortised in the door intermediate the front andv rear .v

faces thereof whereby the end wall only is exposed to view, and a vertically operating locking bolt mounted in saidcasing adapted to interlock withl the ear of said keeper.

L` In a lock for al door, a movable keeper fastened to the door frame and'adapted to be ymoved into inoperative positionv by the door and to assume anl operative position when the door is closed vand a lockingbolt mounted on said doorv adapted to extend through said keeper to eifectvan interlocking of said ear and locking bolt.

5. In a lockfor a door, a movable keeper fastened to the door frame, a casing mounted on said door and a locking'bolt in said casingadapted to interlock ywith said keeper,

' said keeper being,` adapted to be moved intoA inoperative position by the door and toassume an operative position within said cas-y ing when the door isclosed.

v6. In a lock for a door, av keeper fastened to the door frame, a movable ear on said keeper adapted to bepressed inwardly and a locking bolt mounted, onl said door adapted to extend through the ear to efon said keeperl'normallyextending laterally towardsthe door and adaptedto be pressed inwardly by the door upon the closing thereof and a lockingbolt mountedvon lsaid door adapted to extend through the carto effect an interlocking` of said ear, and, locking bolt.

8. In a lock for a swinging door, akeeper fastened to thev door frame, avmovable ear on said keeper, a casing mounted on said door and a locking bolt in said casing adapted to interlock with the ear of said keeper, e

saidy ear being adapted .to be lpressed rinwardly by the door and to be projected into said casing when the door is closed.

9.` In a lock for a door, va keeper fas 4tened to the door vframe, a movable ear on said keeper, a casing mounted on said door" and a vertically operating locking boltin said casing adapted to interlock with the earof said keeper, said ear being` adapted to be pressed inwardly by the door upon the closing` thereof and to be automatically projected into said casing when the door is completely'closed. Y i' 101 In a lock for a swinging door, a keeper vfastened to the door frame, a spring-projected ear on said keeper, a casing mounted on said door and alocking bolt in said casing adapted to interlockl with the earl of said keeper, said ear normally yextending in the space between the door and the door frame and being adapted'to be pressedA inwardly by the door upon the closing'l thereof-and to be automatically projected into said casing when the door is completely closed. e

11. In a lockfor a swinging door, a keeper fastened to the door frame, a spring-pra" jected perforated ear on said keeper, a casing mortisedin said d oor intermediate the front and rear faces thereof, a vertically op- @rating locking bolt mounted in said casing, and a'hook on said locking` bolt adapted to interlock with said perforated ear,` said ear normally extending between the door and f the door frame and being adapted to be pressedinwardly by the door upon the closbolt mounted in said casingand operable ing thereof and to be automatically vpro-'` from within or without the door and azhook on said. locking bolt adapted to interlock with the perforated ear of said keeper, said earl normally extending between the door and door frame and being adapted to. be

Leeaoeo pressed inwardly by the door upon the closing thereof and to be automatically projected through the slot in said casing when the door is completely closed.

13. In lock for a door, a keeper ear fastened to the door frame, a rod pivoted to said ear, means for projecting said ear outwardly towards the door and a locking bolt mounted on said door and adapted to extend through said keeper ear to effect an interlocking of said ear and locking bolt.

111. ln a lock for a door, a projectible keeper ear fastened to the door frame, a rod pivoted to said ear, a housing within which said rod extends, a spring acting to project said ear into the space between the door and door frame and a locking bolt mounted on said door and adapted to extend through said keeper ear to effect an interlocking of said ear and locking bolt.

15. In a lock for a door, a keeper casing mortised in the door frame and provided with av slot in the front wall thereof, a perforated keeper ear normally projecting through the slot and in the space between the door and door frame, a rod pivoted to said ear, a housing within which said rod extends, a spring acting to hold said ear in projected position, means to limit the movement of the ear through said slot and a locking bolt mounted on said door and adapted to interlock with said keeper ear when the door is closed.

16. In a lock for a door, a keeper casing mortised in the door frame and provided with a slot in the front wall thereof, a perforated compressible keeper ear normally projecting laterally through the slot and in the space between the door and door frame, a rod pivoted to the ear Within the keeper casing, a housing within which the rod eX- tends, a spring encircling said housing and bearing against. a wall of the keeper casing and said ear and acting to hold said ear in projected position through said. slot, means carried by said ear to limit the movement thereof through said slot and a looking bolt mounted on said door and adapted to interlock with said keeper ear when the door is closed.

17. In a lock for a door, a keeper fastened to the door frame, a compressible ear on said keeper normally extending in the space be tween t-he doo-r and door frame, a lock casing fastened to the door, a vertically operating locking bolt mounted in said lock casing` adapted to interlock with the ear of said keeper, means for operating said locking bolt from within or without the door, a spring-actuated latch-bolt adapted to be automatically projected in the door frame upon the closing of the door and means for operating said latch-bolt from within or without the door.

18. In a lock for a door, a keeper casing mortised in the door frame and provided with a slot, a spring-projected keeper ear mounted in said keeper casing and normally extending through the slot thereof, a lock casing mortised in the door intermediate the front and rear faces thereof, a vertically operating locking bolt mounted in said lock casing and adapted to interlock with said keeper ear, means for operating said locking bolt from within or Without the door, a spring-actuated latch-bolt adapted to be projected into the door frame upon the closing of the door, said keeper ear being adapted to be pressed inwardly by the door upon the closing thereof and to be auto matically projected through the slot in the lock casing when the door is completely closed and means for operating said latoh bolt from within or without the door.

Signed at New York, in the county of New York and State of New York, this 11th day 0f February, A. D. 1920.

SAMUEL SEGAL.

Witnesses:

F. B. TowNsEND, GEORGE E. BROWN. 

